| abstract |
The invention discloses a high radiation ceramic coating and a preparation method thereof, belonging to the technical field of special coatings. The high radiation ceramic coating includes components by mass percentage: binder 15-30%, ceramic filler 25-50%, glass-ceramic inorganic glass composite 10-30%, auxiliary 0-5 and the balance The sum of the weight percentages of the above-mentioned raw materials is 100%; wherein the inorganic glass is a high-temperature glass with in-situ sintering and high glass-forming ability, which is composed of lithium carbonate, strontium carbonate, boric acid, calcium carbonate, and carbon dioxide. It is composed of silicon, and the ceramic filler includes non-metallic ceramics and metal ceramics. The coating prepared by the invention has good anti-corrosion effect, high and low temperature thermal shock resistance, infrared emissivity can reach 0.95, and is formed by in-situ sintering of inorganic glass in the high temperature process. Secondary leveling can improve the compactness of the coating. |